The U.S. Census Bureau projects world population on Jan. 1, 2018, at 7,444,443,881. This represents an increase of 78,521,283, or 1.07 percent, from New Year’s Day 2017.
The U.S. is estimated to be about 4.4 percent of the global total at 326,971,407 on Jan. 1, 2018. This represents an increase of 2,314,238, or 0.71 percent, from the first day of 2017. In the United States, one birth is expected every 8 seconds and one death every 10 seconds. Meanwhile, net international migration to the U.S. adds one person every 29 seconds. The Census Bureau projects, that as of Jan. 1, this combination of births, deaths and net international migration will add one person to the U.S. population every 18 seconds.
North America was the closest comparison. The mongol empire covered 9.15 million square miles of land while North America covers 9.54 million square miles of land.
